Endress+Hauser Waterpilot FMX21, Operating Instructions Manual

Page: 8 / 144

About this document Waterpilot FMX21
8 Hauser
1.5 Terms and abbreviations
URL OPL MWP LRL
0
p
LRV URV
1
2
3
4
A0029505
• OPL (1)
The OPL (Over Pressure Limit) for the measuring device depends on the lowest-rated
element, with regard to pressure, of the selected components i.e. the process connection
has to be taken into consideration in addition to the measuring cell. Also observe
pressure-temperature dependency.
The OPL may only be applied for a limited period of time.
• MWP (2)
The MWP (Maximum Working Pressure) for the sensors depends on the lowest-rated
element, with regard to pressure, of the selected components, i.e. the process connection
has to be taken into consideration in addition to the measuring cell. Also observe
pressure-temperature dependency.
The MWP may be applied at the device for an unlimited period.
The MWP can also be found on the nameplate.
• Maximum sensor measuring range (3)
Span between LRL and URL. This sensor measuring range is equivalent to the maximum
calibratable/adjustable span.
• Calibrated/adjusted span (4)
Span between LRV and URV. Factory setting: 0 to URL
Other calibrated spans can be ordered as customized spans.
• p : Pressure
• LRL : Lower range limit
• URL : Upper range limit
• LRV : Lower range value
• URV : Upper range value
• TD (Turn down) : Example - see the following section
• PE : Polyethylene
• FEP : Fluorinated ethylene propylene
• PUR : Polyurethane